Hydroxychloroquine 400 mg Tablets: Benefits, Dosage, and Safety Precautions
- Online Medicine Villa
- May 26
- 2 min read
Living with autoimmune diseases or preventing malaria in high-risk areas requires the right medication—and Hydroxychloroquine 400 mg Tablets is a trusted choice for both. This blog will help you understand the uses, dosage, side effects, and safety tips of Hydroxychloroquine 400 mg Tablets for effective and informed use.
What is Hydroxychloroquine 400 mg Tablet?
Hydroxychloroquine 400 mg Tablet is a prescription medicine used for:
Malaria prevention and treatment
Management of autoimmune diseases like rheumatoid arthritis and systemic lupus erythematosus (SLE)
Supporting skin conditions linked to autoimmune issues
It works by modulating the immune system and stopping the malaria parasite from multiplying inside red blood cells.
How Does Hydroxychloroquine 400 mg Tablet Work? (Focus Keyword: Hydroxychloroquine 400 mg Tablets)
Hydroxychloroquine 400 mg Tablets help by:
Reducing immune system overactivity in autoimmune conditions
Blocking inflammation and preventing joint damage in arthritis and lupus
Disrupting the life cycle of Plasmodium parasites in malaria
This dual benefit makes Hydroxychloroquine a vital medicine in many treatment plans.
Dosage & How to Take Hydroxychloroquine 400 mg Tablets
For autoimmune diseases (arthritis, lupus):Typical dosage is 400 mg daily or as directed by your doctor.
For malaria prevention:Usually, 400 mg once a week, starting 1-2 weeks before travel, continuing during exposure, and 4 weeks after leaving the area.
For malaria treatment:800 mg initially, then 400 mg at 6, 24, and 48 hours after the first dose.
Take the tablet with food or a glass of milk to reduce stomach upset.
Possible Side Effects of Hydroxychloroquine 400 mg Tablets
Common side effects may include:
Nausea or vomiting
Headache
Stomach pain
Skin rash
Serious side effects (seek medical help immediately):
Vision changes (blurry vision, light sensitivity)
Irregular heartbeat
Muscle weakness
Mood changes (depression, anxiety)
Safety Information & Precautions
Regular eye exams are crucial for long-term users to monitor for retinal damage.
Inform your doctor about any liver, kidney, or heart problems.
Not recommended during pregnancy or breastfeeding unless prescribed.
Avoid alcohol to reduce liver strain.
Do not stop taking the medicine abruptly without consulting your doctor.
FAQs About Hydroxychloroquine 400 mg Tablets
Q1. Can I take Hydroxychloroquine 400 mg Tablets for COVID-19?
No, Hydroxychloroquine is not approved for treating or preventing COVID-19.
Q2. How long should I take Hydroxychloroquine 400 mg Tablets?
For autoimmune conditions, it may be long-term. Regular medical follow-up is essential.
Q3. Are there any dietary restrictions with Hydroxychloroquine?
No specific diet restrictions, but always take the tablet with food or milk to minimize stomach upset.
Conclusion
Hydroxychloroquine 400 mg Tablets provide relief for autoimmune diseases and help prevent malaria. Follow your doctor’s advice closely and monitor for side effects.
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